CN117285868A - Agricultural machinery bottom surface integrated water-based environment-friendly paint and preparation method thereof - Google Patents
Agricultural machinery bottom surface integrated water-based environment-friendly paint and preparation method thereof Download PDFInfo
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- CN117285868A CN117285868A CN202311436893.XA CN202311436893A CN117285868A CN 117285868 A CN117285868 A CN 117285868A CN 202311436893 A CN202311436893 A CN 202311436893A CN 117285868 A CN117285868 A CN 117285868A
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- water
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- based environment
- friendly paint
- agricultural machinery
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000003973 paint Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000004593 Epoxy Substances 0.000 claims abstract description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims abstract description 6
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 6
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 6
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000000839 emulsion Substances 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000007822 coupling agent Substances 0.000 claims description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 239000012948 isocyanate Substances 0.000 claims description 5
- 150000002513 isocyanates Chemical class 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000006184 cosolvent Substances 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000011056 performance test Methods 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000013008 thixotropic agent Substances 0.000 claims description 3
- 239000000080 wetting agent Substances 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 12
- 239000007921 spray Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the technical field of water-based environment-friendly paint, and particularly relates to a water-based environment-friendly paint for a bottom surface of an agricultural machine and a preparation method thereof, wherein the water-based environment-friendly paint for the bottom surface of a metal substrate is coated on the surface of the metal substrate; the primer-topcoat water-based environment-friendly paint comprises a component A and a component B, wherein the mass ratio of the component A to the component B is (5-6): 1, a step of; the component A is a water-based epoxy modified acrylic paint, the component B is a hydrophilic aliphatic polyisocyanate curing agent of hexamethylene diisocyanate, and the paint is a primer-topcoat water-based environment-friendly paint which has excellent anti-corrosion performance, good water resistance, excellent adhesive force and easy construction in the field of agricultural machinery.
Description
Technical Field
The invention belongs to the technical field of water-based environment-friendly paint, and particularly relates to a water-based environment-friendly paint for a bottom surface of an agricultural machine and a preparation method thereof.
Background
With the high development of agricultural mechanization and modernization in China, the technical level of agricultural machinery paint and coating is also continuously improved. The paint for coating is gradually replaced by water paint with low pollution and high performance, high solid paint, powder paint and the like; the traditional coating mode is that the substrate is pretreated by degreasing and dust removal, and then sandblasted; the base coat is epoxy primer, the top coat is polyurethane top coat, the system can not meet the adhesive force requirement of a metal substrate which is not polished, and the salt spray resistance and weather resistance of a coating can not be considered. In order to improve the production efficiency of a part of agricultural equipment, the base materials of the parts of the equipment are steel plates, aluminum plates and cast iron parts, the pretreatment is not polished, a coating manufacturer needs primer-surfacer integrated paint to ensure the consistency of colors, the adhesive force is required to be good, the construction is convenient, the salt spray resistance and weather resistance are good, the appearance is smooth and smooth, the requirements on the paint coating technology are higher, and the primer-surfacer integrated water-based environment-friendly paint is required to be suitable for the coating of various base materials in order to solve the pain points of the industry.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a primer-topcoat water-based environment-friendly paint for agricultural machinery and a preparation method thereof, wherein the paint is the primer-topcoat water-based environment-friendly paint which has excellent anti-corrosion performance, good water resistance, excellent adhesive force and easy construction in the field of agricultural machinery, and the technical scheme of the invention is as follows:
the primer-topcoat water-based environment-friendly paint for agricultural machinery has the specific structure that the primer-topcoat water-based environment-friendly paint is coated on the surface of a metal substrate; the primer-topcoat water-based environment-friendly paint comprises a component A and a component B, wherein the mass ratio of the component A to the component B is (5-6): 1, a step of; the component A is a waterborne epoxy modified acrylic coating, and has quick drying, excellent cohesiveness, flexibility, corrosion resistance and weather resistance; the component B is a hydrophilic aliphatic polyisocyanate curing agent of hexamethylene diisocyanate, has the characteristics of good compatibility, quick drying, hardening and flexibility, good weather resistance and chemical resistance, and the synthetic reaction of the aqueous epoxy modified acrylic acid OH-containing group and isocyanate mainly occurs by the reaction of the active hydride molecular structure in the polyol and the NCO group in the isocyanate.
The component A comprises the following components in percentage by mass: 70-80 parts of aqueous epoxy modified acrylic emulsion, 0.2-0.4 part of defoamer, 0.3-0.5 part of wetting agent, 1-4 parts of cosolvent, 0.1-0.5 part of thixotropic agent, 1-3 parts of aqueous coupling agent, 0.2-0.5 part of flash rust inhibitor and 10-18 parts of deionized water;
the component B is a hydrophilic aliphatic polyisocyanate curing agent of hexamethylene diisocyanate. The component B comprises the following components in percentage by mass: 15-20 parts of aqueous isocyanate curing agent and 3-5 parts of solvent.
Furthermore, the agricultural machinery bottom surface integrated water-based environment-friendly paint comprises a metal substrate, a metal substrate and an iron casting.
Furthermore, in the agricultural machinery bottom surface integrated water-based environment-friendly coating, the water-based coupling agent is gamma-glycidol ether oxypropyl trimethoxy silane, so that the adhesive force, salt fog resistance and water resistance of the water-based epoxy coating to a substrate are enhanced.
Furthermore, the organic alkanolamine salt anti-flash rust agent is added into the component A, so that the anti-flash rust agent has the effects of inhibiting corrosion, passivating and shielding, prevents cathode reaction on the surface of an iron metal substrate, prevents ionization of iron and prevents electrochemical reaction.
Furthermore, in the agricultural machinery bottom surface integrated water-based environment-friendly coating, the component A uses water-based epoxy modified acrylic emulsion, the hydroxyl value of the emulsion is 60-70mgKOH/g, and the emulsion is internally emulsified water-based epoxy modified acrylic emulsion with high Tg and high crosslinking density so as to enhance water resistance, adhesive force and weather resistance.
The preparation method of the agricultural machinery bottom surface integrated water-based environment-friendly paint comprises the following steps:
step 1, pretreatment: ethanol is used for removing oil and impurities on the surface of the metal substrate, and a polishing process is not needed in the process;
step 2, coating: and (3) diluting the primer-topcoat water-based environment-friendly paint with 5-10% purified water to spray viscosity, filtering the paint with 200-mesh nylon filter screen cloth, spraying the sprayed primer-topcoat water-based environment-friendly paint which is one of paint varnish, colored paint, silver paint and pearl paint, baking the paint film with the thickness of 40-60 mu m for 4 hours at the temperature of 60 ℃, and standing for 7 days for performance test.
The beneficial effects of the invention are as follows:
1. the invention improves the coating efficiency, saves the cost and solves the industrial problem;
2. the invention simplifies the coating, and the original epoxy primer and polyurethane finish paint are updated to be the primer-topcoat water-based environment-friendly paint;
3. the invention simplifies pretreatment, removes impurities from the original oil, then sprays sand, updates to remove the impurities only by oil removal, does not need sand spraying, and also meets the adhesive force requirement;
4. the invention improves the appearance effect, and uses the water-based environment-friendly paint with the integrated bottom surface on different metal substrates, thereby achieving consistent appearance color and beautifying the appearance effect.
Drawings
FIG. 1 is a schematic perspective view of a primer-topcoat aqueous environmental-friendly coating for agricultural machinery according to the present invention;
FIG. 2 is a schematic side sectional view of the present invention agricultural machinery floor unification aqueous environmental protection paint;
in the figure, 1-a metal substrate; 2-primer-topcoat aqueous environmental protection paint.
Detailed Description
As shown in fig. 1-2, an agricultural machinery primer-topcoat aqueous environment-friendly coating is specifically configured by coating a primer-topcoat aqueous environment-friendly coating 2 on the surface of a metal substrate 1; the primer-topcoat water-based environment-friendly paint comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 5:1, a step of; the component A is a water-based epoxy modified acrylic paint, and the water-based epoxy modified acrylic emulsion is used, wherein the hydroxyl value of the emulsion is 60-70mgKOH/g, and the emulsion is an internal emulsified high Tg and high crosslinking density water-based epoxy modified acrylic emulsion; the component A is added with a water-based coupling agent which is gamma-glycidyl ether oxypropyl trimethoxy silane and an anti-flash rust agent which are organic-inorganic compound metal organic chelate, and the component B is a hydrophilic aliphatic polyisocyanate curing agent of hexamethylene diisocyanate.
The component A comprises the following components in percentage by mass: 70-80 parts of aqueous epoxy modified acrylic emulsion, 0.2-0.4 part of defoamer, 0.3-0.5 part of wetting agent, 1-4 parts of cosolvent, 0.1-0.5 part of thixotropic agent, 1-3 parts of aqueous coupling agent, 0.2-0.5 part of flash rust inhibitor and 10-18 parts of deionized water;
the component B is a hydrophilic aliphatic polyisocyanate curing agent of hexamethylene diisocyanate. The component B comprises the following components in percentage by mass: 15-20 parts of aqueous isocyanate curing agent and 3-5 parts of solvent.
The preparation method of the agricultural machinery bottom surface integrated water-based environment-friendly paint is characterized by comprising the following steps of:
step 1, pretreatment: ethanol is used for degreasing and impurity removal treatment on the surface of the metal substrate carbon steel plate, and a polishing process is not needed in the process;
step 2, coating: diluting the primer-topcoat water-based environment-friendly paint with 8% purified water to spray viscosity, filtering with 200 mesh nylon filter screen cloth, spraying, baking at 60deg.C for 4 hr with dry film thickness of 50 μm, standing for 7 days, and testing performance as shown in Table 1:
specific embodiments of the present invention will be described in further detail with reference to 1 example and 3 comparative examples, which are illustrative of the present invention but are not intended to limit the scope of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The parts indicated in the examples are parts by weight unless otherwise indicated.
Comparative examples 1 to 3 are different from example 1 in the kind of aqueous acrylic emulsion in comparative examples 1 to 2 and the hydroxyl value is the same; comparative example 3 without the addition of an aqueous coupling agent; the preparation process of the paint is kept consistent.
The metal substrates in example 1 and comparative examples 1 to 3 were steel sheets.
The relevant raw materials used in example 1 and comparative examples 1 to 3 were purchased commercially, and the specific sources are shown in table 1:
TABLE 1 sources of raw materials
In example 1 and comparative examples 1 to 3, the components and the contents are as shown in Table 2 in parts by weight:
table 2: component content of example 1 and comparative examples 1 to 3
The agricultural machinery primer-topcoat aqueous environment-friendly paints prepared in this example 1 and comparative examples 1 to 3 were tested with reference to HG/T4757-2014 agricultural machinery paint standards, and the test results are shown in Table 3:
TABLE 3 Performance test results
As can be seen from example 1 and comparative examples 1-3, the agricultural machinery bottom surface integrated water-based environment-friendly paint meets the performance requirements in HG/T4757-2014 agricultural machinery paint standards, wherein the water resistance is 480 hours (standard 168 hours) without abnormality, the salt spray resistance is 500 hours without abnormality, and the artificial climate aging resistance is 1000 hours according with the requirements.
Comparative examples 1 and 2 used aqueous acrylic emulsions, and were unsatisfactory in terms of water resistance and salt spray resistance and resistance to artificial weathering; in the test of adhesion force of different substrates, the test results of not polishing the wiredrawing steel plate, not polishing the iron casting and not polishing the aluminum plate do not meet the requirements.
Summarizing example 1 and comparative examples 1-3, it can be seen that the aqueous epoxy modified acrylic emulsion used in example 1, when applied in combination with a coating formulation, meets standard requirements; the quick-drying performance is achieved, and the construction convenience is improved; the adhesive force of different substrates is good, and the integrated application of different substrates can be solved in the industrial application; and the scheme of integrating the bottom surface improves the construction efficiency and reduces the cost.
Claims (6)
1. The primer-topcoat water-based environment-friendly paint for agricultural machinery is characterized in that the primer-topcoat water-based environment-friendly paint is coated on the surface of a metal substrate; the primer-topcoat water-based environment-friendly paint comprises a component A and a component B, wherein the mass ratio of the component A to the component B is (5-6): 1, a step of;
the component A is a waterborne epoxy modified acrylic coating, and comprises the following components in percentage by mass: 70-80 parts of aqueous epoxy modified acrylic emulsion, 0.2-0.4 part of defoamer, 0.3-0.5 part of wetting agent, 1-4 parts of cosolvent, 0.1-0.5 part of thixotropic agent, 1-3 parts of aqueous coupling agent, 0.2-0.5 part of flash rust inhibitor and 10-18 parts of deionized water;
the component B is a hydrophilic aliphatic polyisocyanate curing agent of hexamethylene diisocyanate, and comprises the following components in percentage by mass: 15-20 parts of aqueous isocyanate curing agent and 3-5 parts of solvent.
2. The agricultural machinery primer-topcoat water-based environmental-friendly paint as claimed in claim 1, wherein the metal substrate comprises steel plate, aluminum plate and iron casting.
3. The agricultural machinery bottom surface unification water-based environment-friendly paint is characterized in that the water-based coupling agent added in the component A is gamma-glycidyl ether oxypropyl trimethoxy silane coupling agent.
4. The agricultural machinery primer-topcoat aqueous environmental protection coating according to claim 1, wherein an organic alkanolamine salt anti-flash rust agent is added to the component a.
5. The agricultural machinery bottom surface unification water-based environment-friendly paint is characterized in that in the component A, water-based epoxy modified acrylic emulsion is used, the hydroxyl value of the emulsion is 60-70mgKOH/g, and the emulsion is an internally emulsified high Tg and high crosslinking density water-based epoxy modified acrylic emulsion.
6. A method for preparing the agricultural machinery bottom surface integrated water-based environment-friendly paint as claimed in any one of claims 1-5, which is characterized by comprising the following steps:
step 1, pretreatment: ethanol is used for removing oil and impurities on the surface of the metal substrate, and a polishing process is not needed in the process;
step 2, coating: and (3) diluting the water-based environment-friendly paint with 5-20% of purified water to the spraying viscosity, filtering by using a 200-mesh nylon filter screen cloth, spraying, baking at the temperature of 60 ℃ for 4 hours, and standing for 7 days to perform performance test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436893.XA CN117285868A (en) | 2023-11-01 | 2023-11-01 | Agricultural machinery bottom surface integrated water-based environment-friendly paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436893.XA CN117285868A (en) | 2023-11-01 | 2023-11-01 | Agricultural machinery bottom surface integrated water-based environment-friendly paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117285868A true CN117285868A (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311436893.XA Pending CN117285868A (en) | 2023-11-01 | 2023-11-01 | Agricultural machinery bottom surface integrated water-based environment-friendly paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117285868A (en) |
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2023
- 2023-11-01 CN CN202311436893.XA patent/CN117285868A/en active Pending
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